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A mineral consisting mainly of manganese carbonate, MnCO3, light pink to rose-red in color with a pearly or vitreous luster, used as a manganese ore.

[German Rhodochrosit, from Greek rhodokhrōs, rose-colored : rhodo-, rhodo- + khrōs, color.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Minerals) a pink, red, grey, or brown mineral that consists of manganese carbonate in hexagonal crystalline form and occurs in ore veins. Formula: MnCO3
[C19: from Greek rhodokhrōs of a rosy colour, from rhodon rose + khrōs colour]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.rhodochrosite - a mineral consisting of manganese carbonate; a source of manganese
atomic number 25, manganese, Mn - a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
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References in periodicals archive ?
The previous project had been able to produce manganese sulfate with a purity exceeding 99.6% and low levels of base and alkali metals using material from Battery Hill property which comprises of rhodochrosite,0x20 a manganese carbonate mineral.
3) showed that the test particles demonstrated some crystallinity [23, 24] and the observed peaks were characteristics of manganese carbonate, Rhodochrosite in Rhombohedral crystal system with JCPDS-ICDD 4401472.
The iron and manganese minerals in the study area were goethite, siderite, and rhodochrosite and contained a small amount of pyrite, magnetite, and pyrolusite [23].
Figure 3 displays the existence of rhodochrosite and syn manganese carbonate (JCPDS number 00-007-0268) with space group R-3c (167) which upon calcination at 300[degrees]C transformed to rhodochrosite manganese carbonate oxides (JCPDS number 00-001-0981) (space group R-3c (167)) (Figure 3).
The uncalcined catalyst shows patterns which were obtained to be in agreement with the standard XRD data of rhodochrosite syn-MnC[O.sub.3] (JCPDS number 44-1472).
Manganese is found as braunite, pyrolusite, psilomelane, and rhodochrosite. Pyrolusite is the most important manganese ore.
Necklace of mother of pearl carvings, amethyst drops, and peridot beads in gold; earrings of tanzanite with mother of pearl collar, diamonds, and akoya pearls; pendant of red tree coral, peridot, akoya pearls, and diamonds in gold; and earrings of rhodochrosite, diamonds and akoya pearls in rose gold, all available at Aum Jewels, The Peninsula Manila
44 gives the location of Sweet Home mine rhodochrosite crystals as Utah, rather than Colorado; p.
PINK Rhodochrosite is a strong stone to aid emotional healing.
River Edge, NJ, October 01, 2012 --(PR.com)-- Scientifically, a gemstone is a mineral or petrified material which is used in making jewelry but some gemstones like single-crystal rhodochrosite are too soft to be used as a piece of jewelry.
In most carbonates rocks, the frequently occurring minerals are calcite (CaC[O.sub.3]), dolomite (CaMg(C[O.sub.3]).sub.2]), and Aragonite (CaC[O.sub.3]), other minerals are; otavite, smithsonite, siderite, magnesite, rhodochrosite, vaterite etc [2].